PDMS packaged microfiber knot resonator used for sensing longitudinal load change

Cai, Lu; Li, Jin

doi:10.1016/j.jpcs.2019.109268

Cited by 8 publications

(7 citation statements)

References 30 publications

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Section: Spectral Propertiesmentioning

confidence: 99%

“…Cai et al. proposed a strain measuring load sensing probe by combining the deformability of MKR and PDMS, [ 31 ] which is only encapsulated by PDMS to form a clip‐on structure. This structure is simple to fabricate, stable and can be further optimized to achieve higher measurement requirements.…”

Section: Mkr Sensing Applicationsmentioning

confidence: 99%

“…[23] Rigid knot structure and strong fiber-to-fiber coupling make the MKR increasingly popular in sensing applications. [24] Therefore, MKR-based fiber optic sensors have been studied in depth for measuring various physicochemical parameters, mainly temperature, [25,26] refractive index, [27,28] magnetic field, [29,30] stress strain, [31,32] humidity, [33] and gas. [34] It has outstanding advantages of fast response, high resolution and large detection limits, showing great potential in the field of sensing and detection.…”

Section: Introductionmentioning

confidence: 99%

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Microfiber Knot Resonators: Structure, Spectral Properties, and Sensing Applications

Zhang,

Gao,

Xia

et al. 2023

Laser & Photonics Reviews

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In recent years, compact micro‐/nanofiber sensors with fast response and high resolution have become a hot field in sensing and nanotechnology. In addition to the unique properties of microfibers such as strong evanescent field, low optical loss, and easy integration, microfiber knot resonators further improve the sensing capability due to their resonance properties. The potential high‐quality factor allows higher sensing sensitivity and resolution, which is very attractive for optical sensing at the micro‐/nano scale. More application potential can be effectively stimulated by improving the structure shape or principle or combining with functional sensitive materials. This paper first introduces the preparation process and spectral characteristics of conventional microfiber knots and then focuses on three new types of devices for enhancing the sensing performance, namely material‐coated, shape‐improved, and principle‐extended, and briefly analyzes their spectral properties. In addition, the research progress and applications of these sensors are summarized. Finally, the existing problems in this field are analyzed, and the directions for further development are discussed and prospected.

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Section: Spectral Propertiesmentioning

confidence: 99%

Section: Mkr Sensing Applicationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microfiber Knot Resonators: Structure, Spectral Properties, and Sensing Applications

Zhang,

Gao,

Xia

et al. 2023

Laser & Photonics Reviews

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“…The further functionalization and improvement of materials have been studied to explore some new sensors, such as the hydrophobic PDMS reported by Blank et al The MKR sensor probe can be kept clean when it is used in liquid or high humidity environment [24]. The effect of external strain on temperature sensing performance also needs to be considered [25].…”

Section: Introductionmentioning

confidence: 99%

A Highly-Sensitive Temperature-Sensor Based on a Microfiber Knot-Resonator Packaged in Polydimethylsiloxane

Dang

Chen

2021

IEEE Photonics J.

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“…In past decades, fiber-optic lateral load sensors play an important role in bridge detection, nondestructive health monitoring, and biological shape tracking. Lateral load sensing has been done with different configurations, such as microfiber knot resonator (MKR) [1], hollow-core photonic bandgap fiber [2], photonic crystal fiber (PCF) [3], and fiber Bragg grating (FBG) [4], fiber tip modal interferometer (FTMI) [5]. However, these sensors have complex structures and low lateral * Author to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

Zero cross-sensitive tip thin-walled FPIs based on stretch and arc micromachining technology for lateral load applications

Guo¹,

Guo²,

Zhang³

2021

Meas. Sci. Technol.

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A tip thin-wall hybrid-structure Fabry–Perot interferometer (THFPI) based on zero cross-sensitive, compact, and high robustness is proposed and demonstrated. The tip THFPI was fabricated by stretching and discharging simultaneously when the hollow-core fiber (HCF) and single-mode fiber (SMF) are spliced. The new preparation process and thinking are provided to FPI production. Using the method of stretching into a tapered optical fiber, the material volume of the silica cavity is reduced, which can significantly improve the sensitivity of the lateral load sensor. We exhibit the experimental results of using the Vernier effect to measure the lateral load. The lateral load sensitivity obtained by monitoring the envelope interference wavelength is 3.1 times the lateral load sensitivity obtained by tracking the dip of the high-frequency component. In addition, a parameter decoupling algorithm is proposed to achieve the precise measurement of lateral load in a variational temperature environment. The parametric decoupling algorithm can be extended to similar sensors with cross-sensitivity. The high sensitivity, high stability, and non-cross-sensitive sensors proposed in this paper have important practical application value.

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PDMS packaged microfiber knot resonator used for sensing longitudinal load change

Cited by 8 publications

References 30 publications

Microfiber Knot Resonators: Structure, Spectral Properties, and Sensing Applications

Microfiber Knot Resonators: Structure, Spectral Properties, and Sensing Applications

A Highly-Sensitive Temperature-Sensor Based on a Microfiber Knot-Resonator Packaged in Polydimethylsiloxane

Zero cross-sensitive tip thin-walled FPIs based on stretch and arc micromachining technology for lateral load applications

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